A former state MP will face a second child abuse trial after continuing to deny allegations he sexually assaulted a teenage boy in a communal toilet.Rory Amon, 36, has consistently argued he thought a 13-year-old boy was of legal age before meeting him at the youth's apartment block in 2017.The former Liberal politician has admitted having sex with the teen on one occasion in the building's car park toilet, but says he had a reasonable belief the boy was over